Bullet Lines LED speaker and cup holder rings are the brightest rings on the market. We use SMD 3528 super class LEDs which provide 16 individual LEDs per foot: this makes our speaker rings the highest density available today. Only premium polished acrylics are used for our rings, and water proof high force viscose is applied to attach LEDs to acrylics. Our incredible selection in LED ring sizes allows use to fit almost all 6.5" speakers, all 7.7" speakers, and Wetsounds Pro 60 and Pro 80 Speakers. These rings are plug in play: just mount the rings in between the speaker flange and mounting area, or slide cup holders in rings, wire, and you are done. The simplest way to add the wow factor to any boat.